Accounting for radiotelemetry signal flux in triangulation point estimation

摘要: Triangulation by radiotelemetry is a method commonly used to estimate locations of wildlife. Despite the importance accuracy resulting location estimates, there has been little development and comparison alternative methods for point-location estimation 25 years. Most assume that signal transmissions as they are received consistent, but heterogeneity fluxing common. Using data from beacon study, we determined subjective ranking confidence in was correlated with absolute bearing error. this factor distance telemetry station error triangle incenter, developed an algorithm place weighted relative proximity each leg. We have termed weighted-incenter method. previous findings major ellipse axis Lenth’s maximum likelihood estimator (MLE) best linear error, our test indicated total angle difference single predictor optimal about 100°. The new intuitive offered some improvement over such MLE estimator, only suboptimal bearings may be common field studies. By using MATLAB function produce site-specific regression analyses, one can determine which should more accurate triangulation observation. Further significance study biologists discussed.